Starting device for internal-combustion engines.



W. R, DUNKBL.

STARTING DEVICE FOR INTERNAL COMBUSTION ENGINES.

APPLICATION FILED NOV. 26, 1009.

980,502, Patented Jan.3,1911.

pair of concentric UNITE STATES PATENT orr cn.

wanna a. DUNKEL, or PANA, ILLINOIS, ASSIGNOB. or ONE-HALF To 'qimaaeo m-SCROGGIN, or HARRISTOWN, I

LLINoIs.

STARTING DEVICE ron INTERNAL-COMBUSTION ENGINES. 5

To all whom it may concern.

Be it known that I, ILBER R. DUNKEL, a citizen of the United States,residing at Pana, in the county of Christian and State of Illinois, haveinvented a new and useful Starting Device for Internal-CombustionEngines, of which the following is a specification.

This invention has for its object to provide a simple and efficientstarting device for internal combustion engines, in which the crankshaft of the engine carries an independently rotatable member which isoperatively connected by means'of a flexible band to a lever, togetherwith a clutch mechanism for coupling said member to the crank shaft whenthe member is rotated in one direction by the lever and flexible band.

The invention also has for its object to provide a mechanism forrestoring the parts to their normal positions after the engine has beenstarted.

With these objects in view, the invention consists in the novelconstruction and arrangement of the parts to be hereinafter de scribedand claimed, reference being had to the drawing hereto annexed, inwhich,

Figure 1 is an elevation of the device, partly in section, the sectionbeing taken on the line 11 of Fig. 2. Fig. 2 is a vertical section onthe line 2-2 of Ii ig. 1.

In the drawing, 5 denotes the crank shaft of the engine to which theinvention is applied. On this shaft is keyed or otherwise made fast, adisk 6 which is encircled by a rings 7 and 8, said rings being fastenedtogether by bolts 9, or other suitable means. The ring 7, which is theinner one, is loose on the disk so as to be free to rotate thereon, andthe contiguous surfaces of said ring and disk are formed with ball racesto receive anti-friction balls 10. The ring 7 is in two sections so thatthe parts may be assembled.

A clutch mechanism is provided for lock ing the ring 7 .to the disk 6when said ring is rotated in one direction. This clutch is a pawl andratchet mechanism comprising a ball 11 seating in a pocket 12 made inthe inner periphery of the ring 7. The pocket has an inclined wall sothat when the ring is rotated in one direction, the ball 11 is jammedbetween said wall and the periphery of the disk 6, thereby coupling theparts. Upon rotating the ring in the opposite di- Specification ofLetters Patent. Application filed November 26, 1 909.

ons from the foregoing Patented Jan. 3, 1911. Serial No. 529,981.

some other mechanism which accomplishes 5 the same result may besubstituted therefor.

The rotation of the ring 7 is effected by a band, cable or otherflexibleelement 13, which is fastened at one end of the periphery of thering 8 and is passed partly around 5 the same, and then carried to, andconnected at its other end to a foot pedal or other operating device 14.To the periphery of the ring 8 is also fastened one end of a flexibleband 15, passing the opposite direction from the band 13 and connectedat its other end to a spring roller 16 for restoring the parts to theirnormal position. The ring 8 is of sufficient width so that the bands 13and without interference, and in the periphery of the rings are grooves17 in which the bands seat, whereby they are prevented from slipping offsidewise.

partly around the same, in

15 may pass each other The operation of the device will beobvidescription, but it may be summarized as follows: Upon swinging thefootpedal l4 forwardly, the rings 7 and 8 through the band 13 arerotated whereupon they the pawl and ratchet mechanism, and as said diskis made fast to the crank shaft 5 of the engine, said shaft is rotated.The rotary movement of the rings 7 and 8, just deare locked on the disk6 by lfb scribed, also unwinds the band 15 from the spring roller 16, sothat when the footpedal 14 is released, said band is rewound on thespring roller, and the parts arethus restored to their normal position.

The device herein described is, simple in 9 construction and highlyefiicient in operation; It is designed primarily for automobiles, sothat the engine may be started without the driver dismounting.

What is claimed is:-

In a starting device for an internal combustion engine, the combinationwith the crank shaft of the engine; of a disk made fast on the shaft, aring loosely encircling the periphery of the disk, the outer peripheryof said ring having spaced circumferential grooves, a clutch mechanismbetween the disk and the ring, flexible bands secured at one of theirends in the respective grooves, and wound around the ring in saidgrooves in-eppositei directions, and extending from the'ring in oppositedirections, an operatas my own, I have hereto affixed my signaing deviceconnected to the other end of one time in the presence of two witnesses.

of said bands; and a rewinding device to WILBER DUNKEL 5 which the otherendof the otherband. is Witnesses:

connected.

' 7 GR. Sonoeem, In testimony that I claim the foregoing M. P. CowEN.

